Insulator for high voltages.



No. 839,665. PATENTED DEC. 25, 1906.

' L. STEINBERGER.

INSULATOR FOR HIGH VOLTAGES.

APPLIUATION FILED JUNE 32, 1905.

" WITNESSES: J1 INVENTOR 9 J5 jil'nbery?! Br 8 ATTORNEYS TEs PATENT OFFICE.

LOUIS STEINBERGER,

or NEW-YORK, N.-Y.

iiisU ATon FOR HIGH VOLTAGES.'

Specification 9f Letters Patent.

Patented Dec. 25, 1906.

\ Application filed'June 22,1905. Serial No. 266,407.

To all whom it may concern/.-

- lowing is a full, clear, and exact description.

' My invention relates to insulators for electric conductors, and especially to insulators for conductors conveying currents of high potential-J The main object of my insulator is to prevent any leakage of current or the possibility of the formation of a destructive are between the conductor and the line-support, such as a partition or wall, and also to prevent the leakage of the current and the formation of arcs between the conductors and adjacent bodies. y Y

.M 'nvention-further seeks-to provide the ins ator with hoods or disk-like members movable relatively-thereto,whereby the arcing distance may be varied and the hoods or disk-like members disposed to best advantage for the purposes above mentioned.

Afurther object of my invention is to produce an insulator provided with walls constructed of different materials, my primary object being to use in some instances for certain-of the walls a non-fireproof material,

thereby obtaining the highest possible insulatin' qualities combined with great strengt and at the same time making the insulator practically fireproof, either on theinside or outside.

Ido not limit myself in every instance to .make the tube orwall 13 separable fromthe barrel 6 nor do I limit myself to havin in I i-ng drawings, forminga' part of this specifica every instance the bottom of the barre integral withthe main body'portion, as various. changes in construction may be made by those skilled in the art without departing from the scope or spirit of my invention.

;Reference: is to be' had to the accompanytion,-in wlnchsirnilar. characters of reference indicate. corresponding-parts in all the figand one of the insulating-tubes removed therefrom. I l

A wall or partition is shown at ,4 and is provided'with a threaded aperture 5, into which is screwedEa cylindrical barrel 6, of insulating material, preferably electrose, ro-

vided externally with a thread 7 exten ing throughout its entire length. This barrel 6 .is provided, further, with a bottom 8 integral therewith. A pair of revoluble clamp; ing-plates 9 areprovided with annular pro jecting edges 10 and are threaded internally, 1'

so as to fit upon the thread 7 of the barrel 6. By turnin these clamping-plates they may be screwe toward and from each other; and

also toward andfrom the partition or wall 4. The annular washers 11 are of insulatin material, preferably of soft rubber, an are clamped rigidly against the partition or wall 4 by pressure of the clamping-plates 9.

Disposed within the barrel 6 and concentric thereto is a tube 13, of insulating material, preferably glass, separated from the cylindrical barrel 6 by an air-gap 12, as indicated in Fig. 3. A closure-plug 14 fits the 0 en end of thecylindrical barrel 6 and is t eadd at 15 for such purpose, the interior of the barrel being similarly threaded. The plug 14 is provided with a centrally-disposed aperture 14, and the bottom of the barrel 6 is provided with a similar aperture 16. A sleeve 17, of insulating material, preferably porcelain, may be mounted intermediate ofthe .tube 13 and the barrel 6' and concentric therewith, as indicated in Fig. 1. The tube 13 and the sleeve 17 are fitted against washers 18 19, these washers being of-soft rubber, as indicated in Fig. 1.

The only difference between the internal construction of the insulator as shown in Fig. 1 and as shown in Fig. 3 is that in Fig'. 3 the sleeve 17 is omitted.

Apertures--20 21 are provided for the purpose of allowing a circulation of air. through the air-space 12 when said spacejgiis used. This maintains the interior of the cylindrical barrel 6 as dry as practicable. The hoods or disk-like members are shown at 22 and 24 and are threaded internally, so as to fit upon the exterior'of the barrel 6. These hoods or disk-like members are provided with annular flanges 23 and 25, whereby they are virtually any purpose for which an article of its charincreased.

acter'is needed. The washers 18 19, having. more or less resiliency, as above described, serve to distribute the pressure against the tube 13 and the sleeve 17, so as toavoid danger of breakage of these members. The arrangement of the parts is such that the tube 13 is sunken into the oppositely-disposed ends of the barrel 6.

In order for a current to break through the complete composite structure, (shown in Fig. 1,) it must pass through the insulatingbarnel 6, the sleeve 17, and the tube 13, together with a body (it air inside of the tube 13 and encircling the conductor; Theapertures 14 and 16 being smaller than the tube 13 necessarily creates an air-jacket surrounding the conductor, which passes throughthese apertures. By making the barrel 6, the sleeve 17, and the tube 13 of materials having different dielectric constants I find that the aggregate insulating'efl'ect is greatly By using 'fireprooi'ing materials for these parts I render the insulator 1ircproof, either internally or externally, or both, as desired.

Having thus described my invention, 1'

claim as new and desire to secure by Letters Patent- 1. The combination of a cylindrical barrel provided with a botto and a closure ire ber-i'or said cylindrical barrel, said bottom and said closure irc'i ber being provided 3. In an insulaton'tlie combination of a j body portion of insulating material, a tube iiu'iunted within said body portion and con centric thereto, means for spacing said tube relatively to said body portion, and a hood inounted'externally upon said body portion and adjustable in relation to the same.

4. The combination of a partition provided With-an aperture, a body portion of insulatng material: extending through said aper ture and adjustable relatively'tosaid partition, and a hood mounted upon said body portion and adjustable relatively thereto.

The combination ol a partition, a cylindrical barrel extending thcrcthrough, means l'or securing said-barrel relatively to said partition, and a hood iiiountcd upon said barrel I and adjustable rclativoly to said partition.

n. An N iulator, comprising av cylindrical barrel tlircadcil externally and provided at "'10. ciid-ol' its ends with a botto'ii, claiiipiiig- 5 plates threaded internally and engaging said j rcl provided externally with a continuous cylindrical barrel, and a closure member engagin said cylindrical barrel.

7 %he combination of a cylindrical barrel threaded externally throughout its entire length, a partition provided with an aper gage said washer, and a closure member on gaging said tubular member and. said barrel.

9. A'n'insulator, comprising-a lMU I'Cl'COHP- posed of insulating material and provided with a bottom integral therewith, nieans'for extending said barrel to a greater or lesser extent thri'iugh a partition, a tubular sleeve mounted wit-bin said barrel, a tube mounted within said tubular sleeve, said tubular sleeve and said tube being of insulating material, and a closure member engaging-said oylindrical barrel and adapted to exert 'pressure upon'said tube and said tubular sleeve.

10. An insulator, comprising a barrelcoinposed of ins'ulating material and-threaded externally, said barrel'being provided at one of it's ends with a bottom, and being threaded internally at its other end, and a closure-plug of insulating material provided externally with a thread and fitted into said threaded end.

1]. An insulator, comprising a cylindrical barrel composed ol, insulating material and provided at one ol its ends with a bottom and threaded internally at the other of its ends, a. closure-plug threaded externally and fitted into said threaded end, a tube of insulating material clamped intermediate ol said closure-plug and said bottom, and means for adjusting the general position of said barrel relatively to a position supporting the same.

12. The combination of a cylindrical barrel, a partition tl'irough which said barrel extends, a plurality of hoods mounted upon said barrel, and disposed upon opposite sides ol said partition.

1?. The combination of a partition, a cy lindrical barrel extending entirely through said part iiioii and adjustable relativelythereto, and a hood mounted upon said cylindrical ha rrcl.

14. The combination ol. a partition, abarrol composed of insulating material and extending entirely through said partition and adjustable relatively thereto, and a hood of insulating material encircling said cylindrical barrel and adjustable thereupon.

15.. 'llic conil'iination ol' a cylindrical baragainst said artition, and a hood mounted upon said cy indrical body.

16. The combination of an insulator comprisi a tubular body portion provided external y with a thread, a partition through I which saidtubular body portion extends, V and a clamping-plate engaging said tubular made of insulating material body portion, and adapted to exert pressure upon said partition.

17. The combination of a partition provided with an aperture,-a barrel composed of insulating material and extending entirely throu h said partition, said barrel being threa ed externally, andrevoluble clamgaingplates mounted upon opposite sides 0 said partition and threaded so as to fit upon said )ody portion.

18. An insulator, compr'sing a casin made of insulating materia and provide with a bottom, a resilient member of insulating) material disposed within said casing, a tu ular. member of insulating material engaging said resilient member, and a closure member engaging said casing.

19. An insulator, comprising a casin rovided Wit end portions, and a plurality o tubular members of insulating material disposed within said casing and intermediate of said end portions.

20. An insulator, comprising a casinmade of insulating material and rovide with end portions, and a plurality o tubular members of insulating material removably mounted Within said casing and intermediate of said end ortions.

21. An insulator, comprising a easin made of insulating material and provided with a lining, of a fireproof material.

22. An insulator, comprising a casing made of insulating material, said casing being provided with a plurality of linings, the

said linings consisting of fireproof insulating 5 materials.

23. An insulator, comprising a casing made of insulating material, said insulating material having a low softening-point, the

said casing being providedwith a lining-of insulating material, said lining consisting of a material having a high softening-point.

24. An insulator, comprising a casin made of insulating, material, said materia having a low softenin -point, the said casing being provided with a ining of fireproof insulating material.

25. An insulator, comprisin a c lindrical tubing of inaulatim material t rea ed externally, and a plurality of clampin members threaded internally, enga ing sai casing.

' In testimony whereof have signed-my name to this specification in the presence of two subscribing witnesses.

Louis STEINB-ERGER.

Witnesses:

J. L. MOAULIFFE, EVERARI) B. MARSHALL. 

